class RepDB:
def __init__(self, path):
self.path = path
self.dbh_stored_blocks = Base(self.path)
try:
self.dbh_stored_blocks.create(('key', str), ('version', str))
except IOError:
pass
def open(self):
self.dbh_stored_blocks.open()
def add(self, oid, block_id, version):
key = str((oid, block_id))
# lets see if we already have a key stored
set = self.dbh_stored_blocks.select_for_update(['key', 'version'],
key=key)
if set == []:
self.dbh_stored_blocks.insert(key, str(version))
else:
set[0].update()
def get(self, oid, block_id):
key = str((oid, block_id))
result = self.dbh_stored_blocks.select(['key', 'version'], key=key)
return result[0].version
def update(self, oid, block_id, version):
self.add(oid, block_id, version)
def delete(self, oid, block_id):
key = str((oid, block_id))
set = self.dbh_stored_blocks.select_for_update(['key', 'version'],
key=key)
self.dbh_stored_blocks.delete(set[0])
def close(self):
self.dbh_stored_blocks.close()
def getIterator(self):
return RepDBIterator([record for record in self.dbh_stored_blocks])
class RepDB:
def __init__(self, path):
self.path = path
self.dbh_stored_blocks = Base(self.path)
try:
self.dbh_stored_blocks.create(('key', str), ('version', str))
except IOError:
pass
def open(self):
self.dbh_stored_blocks.open()
def add(self, oid, block_id, version):
key = str((oid, block_id))
# lets see if we already have a key stored
set = self.dbh_stored_blocks.select_for_update(['key','version'],key=key)
if set == []:
self.dbh_stored_blocks.insert(key, str(version))
else:
set[0].update()
def get(self, oid, block_id):
key = str((oid, block_id))
result = self.dbh_stored_blocks.select(['key','version'],key=key)
return result[0].version
def update(self, oid, block_id, version):
self.add(oid, block_id, version)
def delete(self, oid, block_id):
key = str((oid, block_id))
set = self.dbh_stored_blocks.select_for_update(['key','version'],key=key)
self.dbh_stored_blocks.delete(set[0])
def close(self):
self.dbh_stored_blocks.close()
def getIterator(self):
return RepDBIterator([record for record in self.dbh_stored_blocks])
class DB:
def __init__(self, storage_path):
self.dbh_objects = Base(os.path.join(storage_path, 'objects'))
self.dbh_blocks = Base(os.path.join(storage_path, 'blocks'))
self.dbh_replicas = Base(os.path.join(storage_path, 'replicas'))
self.dbh_tree = Base(os.path.join(storage_path, 'tree'))
self.dbh_paths = Base(os.path.join(storage_path, 'paths'))
self.dbh_id = Base(os.path.join(storage_path, 'id'))
self.dbh_tags = Base(os.path.join(storage_path, 'tags'))
self.storage_path = storage_path
def __create_root(self):
""" Check if the filesystem has a / and if not create it"""
print "Initializing filesystem..."
if self.get_file(path='/'):
return
print "Creating root..."
f = FSObject(1,1,'/',0,0,0,0)
# lets see if we already have a key stored
set = self.dbh_objects.select(['oid'],oid=str(f.oid))
if set == []:
# we have create tree and paths first
self.dbh_tree.insert(str(f.oid), str(f.parent))
self.dbh_paths.insert(str((f.parent, f.path)))
self.dbh_objects.insert(str(f.oid), dumps(f), self.dbh_tree[len(self.dbh_tree)-1], self.dbh_paths[len(self.dbh_paths)-1])
#set the current oid for the id increment sequence
set = self.dbh_id.select(['curr_oid'])
if set == []:
self.dbh_id.insert('1')
def setup_fs_db(self):
try:
self.dbh_blocks.create(('key', str), ('blocks', str))
except IOError:
self.dbh_blocks.open()
try:
self.dbh_replicas.create(('key', str), ('replicas', str))
except IOError:
self.dbh_replicas.open()
try:
self.dbh_tree.create(('oid', str), ('parent', str))
except IOError:
self.dbh_tree.open()
try:
self.dbh_tags.create(('oid', str), ('tag', str))
except IOError:
self.dbh_tags.open()
try:
self.dbh_paths.create(('key', str))
except IOError:
self.dbh_paths.open()
try:
self.dbh_id.create(('curr_oid', str))
except IOError:
self.dbh_id.open()
try:
self.dbh_objects.create(('oid', str), ('fsobj', str), ('tree', self.dbh_tree), ('paths', self.dbh_paths))
except IOError:
self.dbh_objects.open()
self.__create_root()
def get_path_oid(self, path):
"""Gets the parent filenode for path"""
nodes = []
parent_path = path
while 1:
(parent_path,node) = os.path.split(parent_path)
if node == '':
nodes.insert(0,'/')
break
nodes.insert(0,node)
parent_oid = 0
for node_name in nodes:
key = str((parent_oid, node_name))
print "looking up: %s" % key
# search for a match
f = None
for record in [record for record in self.dbh_objects]:
if record.paths.key == key:
f = loads(record.fsobj)
break
print "found it!"
if not f:
return 0
parent_oid = f.oid
return parent_oid
def insert_file(self, path, fsobj):
#check first if there is a parent directory to store this file
f = self.get_file(path=path)
print "inserting file with path: "+path
print fsobj
if not f:
print "ERR: [%s]" % os.path.split(fsobj.path)[0]
raise FileSystemError('No parent directory to store: %s' % fsobj.path)
#the parent of this object is the path
fsobj.parent = f.oid
set = self.dbh_id.select_for_update(['curr_oid'])
curr_oid = int(set[0].curr_oid) + 1
fsobj.oid = curr_oid
print "Inserting OID: %s" % fsobj
# lets see if we already have a key stored
result = self.dbh_objects.select(['oid','fsobj'],oid=str(fsobj.oid))
if result != []:
raise FileSystemError('File already exists')
else:
# we have create tree and paths first
self.dbh_tree.insert(str(fsobj.oid), str(fsobj.parent))
self.dbh_paths.insert(str((fsobj.parent, fsobj.path)))
self.dbh_objects.insert(str(fsobj.oid), dumps(fsobj), self.dbh_tree[len(self.dbh_tree)-1], self.dbh_paths[len(self.dbh_paths)-1])
set[0].update(curr_oid=str(curr_oid))
return curr_oid
def get_file(self, oid='', path=''):
if oid:
set = self.dbh_objects.select(['oid', 'fsobj'], oid=str(oid))
if set == []:
f = None
else:
f = set[0].fsobj
elif path:
if path == '/':
key = str((0,'/'))
else:
parent_oid = self.get_path_oid(os.path.split(path)[0])
node_name = os.path.split(path)[1]
key = str((parent_oid, node_name))
# search for a match
f = None
for record in [record for record in self.dbh_objects]:
print record.paths.key
if record.paths.key == key:
f = record.fsobj
break
else:
f = None
if f:
f = loads(f)
return f
def get_children(self, oid):
# lookup FSOBJECT with given oid
set = self.dbh_objects.select(['oid', 'fsobj'], oid=str(oid))
if set == []:
return []
file_array = []
# lookup objects with parent oid
set = self.dbh_tree.select(['oid', 'parent'], parent=str(oid))
for i in set:
obj = self.dbh_objects.select(['oid', 'fsobj'], oid=str(i.oid))
if obj != []:
file_array.append(loads(obj[0].fsobj))
return file_array
def debug_print_db(self, db):
pass
def print_object_db(self):
self.debug_print_db(self.dbh_objects)
def delete_dir(self,oid):
pass
def delete_file(self, oid):
pass
def rename_file(self,src,dest):
pass
def update_file(self, fsobj):
set = self.dbh_objects.select_for_update(['oid', 'fsobj'], oid=str(fsobj.oid))
if set != []:
set[0].update(fsobj=dumps(fsobj))
def add_block(self, block, serverid):
f = self.get_file(oid=str(block.oid))
if not f:
raise FileSystemError('add_block: Object %s does not exist' % block.oid)
key = str((long(block.oid),long(block.block_id))) #the key is both the oid and the block_id
set1 = self.dbh_replicas.select_for_update(['key', 'replicas'], key=key)
if set1 == []:
replicas = FSReplicas(block.oid, block.block_id)
else:
replicas = loads(set1[0].replicas)
f.blocks[block.block_id] = block.version
set2 = self.dbh_blocks.select_for_update(['key', 'blocks'], key=key)
if set2 == []:
b = None
else:
b = set2[0].block
if b:
b = loads(b)
diff = block.size - b.size
else:
diff = block.size
f.size += diff
# update or insert?
if set1 == []:
self.dbh_blocks.insert(key, dumps(block))
else:
set1[0].update(blocks=dumps(block))
self.update_file(f)
replicas.add(serverid, block.version)
# update or insert?
if set2 == []:
self.dbh_replicas.insert(key,dumps(replicas))
else:
set2[0].update(replicas=dumps(replicas))
def add_block_replica(self, block, serverid):
f = self.get_file(str(block.oid))
if not f:
raise FileSystemError('add_block_replica: Object %s does not exist' % block.oid)
key = str((block.oid, block.block_id))
set = self.dbh_replicas.select_for_update(['key', 'replicas'], key=key)
if set == []:
replicas = FSReplicas(block.oid, block.block_id)
else:
replicas = loads(set[0].replicas)
replicas.add(serverid, block.version)
# update or insert?
if set == []:
self.dbh_replicas.insert(key,dumps(replicas))
else:
set[0].update(replicas=dumps(replicas))
def get_block_replicas(self, oid, block_id):
key = str((long(oid), long(block_id)))
set = self.dbh_replicas.select(['key', 'replicas'], key=key)
if set == []:
return None
return loads(set[0].replicas)
def get_block(self, oid, block_id):
key = str((long(oid), long(block_id)))
set = self.dbh_blocks.select(['key', 'blocks'], key=key)
if set == []:
return None
return loads(set[0].blocks)
def print_replicas_db(self):
self.debug_print_db(self.dbh_replicas)
def close_fs_db(self):
self.dbh_blocks.close()
self.dbh_replicas.close()
self.dbh_tree.close()
self.dbh_id.close()
self.dbh_paths.close()
self.dbh_objects.close()
class DB:
def __init__(self, storage_path):
self.dbh_objects = Base(os.path.join(storage_path, 'objects'))
self.dbh_blocks = Base(os.path.join(storage_path, 'blocks'))
self.dbh_replicas = Base(os.path.join(storage_path, 'replicas'))
self.dbh_tree = Base(os.path.join(storage_path, 'tree'))
self.dbh_paths = Base(os.path.join(storage_path, 'paths'))
self.dbh_id = Base(os.path.join(storage_path, 'id'))
self.dbh_tags = Base(os.path.join(storage_path, 'tags'))
self.storage_path = storage_path
def __create_root(self):
""" Check if the filesystem has a / and if not create it"""
print "Initializing filesystem..."
if self.get_file(path='/'):
return
print "Creating root..."
f = FSObject(1, 1, '/', 0, 0, 0, 0)
# lets see if we already have a key stored
set = self.dbh_objects.select(['oid'], oid=str(f.oid))
if set == []:
# we have create tree and paths first
self.dbh_tree.insert(str(f.oid), str(f.parent))
self.dbh_paths.insert(str((f.parent, f.path)))
self.dbh_objects.insert(str(f.oid), dumps(f),
self.dbh_tree[len(self.dbh_tree) - 1],
self.dbh_paths[len(self.dbh_paths) - 1])
#set the current oid for the id increment sequence
set = self.dbh_id.select(['curr_oid'])
if set == []:
self.dbh_id.insert('1')
def setup_fs_db(self):
try:
self.dbh_blocks.create(('key', str), ('blocks', str))
except IOError:
self.dbh_blocks.open()
try:
self.dbh_replicas.create(('key', str), ('replicas', str))
except IOError:
self.dbh_replicas.open()
try:
self.dbh_tree.create(('oid', str), ('parent', str))
except IOError:
self.dbh_tree.open()
try:
self.dbh_tags.create(('oid', str), ('tag', str))
except IOError:
self.dbh_tags.open()
try:
self.dbh_paths.create(('key', str))
except IOError:
self.dbh_paths.open()
try:
self.dbh_id.create(('curr_oid', str))
except IOError:
self.dbh_id.open()
try:
self.dbh_objects.create(('oid', str), ('fsobj', str),
('tree', self.dbh_tree),
('paths', self.dbh_paths))
except IOError:
self.dbh_objects.open()
self.__create_root()
def get_path_oid(self, path):
"""Gets the parent filenode for path"""
nodes = []
parent_path = path
while 1:
(parent_path, node) = os.path.split(parent_path)
if node == '':
nodes.insert(0, '/')
break
nodes.insert(0, node)
parent_oid = 0
for node_name in nodes:
key = str((parent_oid, node_name))
print "looking up: %s" % key
# search for a match
f = None
for record in [record for record in self.dbh_objects]:
if record.paths.key == key:
f = loads(record.fsobj)
break
print "found it!"
if not f:
return 0
parent_oid = f.oid
return parent_oid
def insert_file(self, path, fsobj):
#check first if there is a parent directory to store this file
f = self.get_file(path=path)
print "inserting file with path: " + path
print fsobj
if not f:
print "ERR: [%s]" % os.path.split(fsobj.path)[0]
raise FileSystemError('No parent directory to store: %s' %
fsobj.path)
#the parent of this object is the path
fsobj.parent = f.oid
set = self.dbh_id.select_for_update(['curr_oid'])
curr_oid = int(set[0].curr_oid) + 1
fsobj.oid = curr_oid
print "Inserting OID: %s" % fsobj
# lets see if we already have a key stored
result = self.dbh_objects.select(['oid', 'fsobj'], oid=str(fsobj.oid))
if result != []:
raise FileSystemError('File already exists')
else:
# we have create tree and paths first
self.dbh_tree.insert(str(fsobj.oid), str(fsobj.parent))
self.dbh_paths.insert(str((fsobj.parent, fsobj.path)))
self.dbh_objects.insert(str(fsobj.oid), dumps(fsobj),
self.dbh_tree[len(self.dbh_tree) - 1],
self.dbh_paths[len(self.dbh_paths) - 1])
set[0].update(curr_oid=str(curr_oid))
return curr_oid
def get_file(self, oid='', path=''):
if oid:
set = self.dbh_objects.select(['oid', 'fsobj'], oid=str(oid))
if set == []:
f = None
else:
f = set[0].fsobj
elif path:
if path == '/':
key = str((0, '/'))
else:
parent_oid = self.get_path_oid(os.path.split(path)[0])
node_name = os.path.split(path)[1]
key = str((parent_oid, node_name))
# search for a match
f = None
for record in [record for record in self.dbh_objects]:
print record.paths.key
if record.paths.key == key:
f = record.fsobj
break
else:
f = None
if f:
f = loads(f)
return f
def get_children(self, oid):
# lookup FSOBJECT with given oid
set = self.dbh_objects.select(['oid', 'fsobj'], oid=str(oid))
if set == []:
return []
file_array = []
# lookup objects with parent oid
set = self.dbh_tree.select(['oid', 'parent'], parent=str(oid))
for i in set:
obj = self.dbh_objects.select(['oid', 'fsobj'], oid=str(i.oid))
if obj != []:
file_array.append(loads(obj[0].fsobj))
return file_array
def debug_print_db(self, db):
pass
def print_object_db(self):
self.debug_print_db(self.dbh_objects)
def delete_dir(self, oid):
pass
def delete_file(self, oid):
pass
def rename_file(self, src, dest):
pass
def update_file(self, fsobj):
set = self.dbh_objects.select_for_update(['oid', 'fsobj'],
oid=str(fsobj.oid))
if set != []:
set[0].update(fsobj=dumps(fsobj))
def add_block(self, block, serverid):
f = self.get_file(oid=str(block.oid))
if not f:
raise FileSystemError('add_block: Object %s does not exist' %
block.oid)
key = str(
(long(block.oid),
long(block.block_id))) #the key is both the oid and the block_id
set1 = self.dbh_replicas.select_for_update(['key', 'replicas'],
key=key)
if set1 == []:
replicas = FSReplicas(block.oid, block.block_id)
else:
replicas = loads(set1[0].replicas)
f.blocks[block.block_id] = block.version
set2 = self.dbh_blocks.select_for_update(['key', 'blocks'], key=key)
if set2 == []:
b = None
else:
b = set2[0].block
if b:
b = loads(b)
diff = block.size - b.size
else:
diff = block.size
f.size += diff
# update or insert?
if set1 == []:
self.dbh_blocks.insert(key, dumps(block))
else:
set1[0].update(blocks=dumps(block))
self.update_file(f)
replicas.add(serverid, block.version)
# update or insert?
if set2 == []:
self.dbh_replicas.insert(key, dumps(replicas))
else:
set2[0].update(replicas=dumps(replicas))
def add_block_replica(self, block, serverid):
f = self.get_file(str(block.oid))
if not f:
raise FileSystemError(
'add_block_replica: Object %s does not exist' % block.oid)
key = str((block.oid, block.block_id))
set = self.dbh_replicas.select_for_update(['key', 'replicas'], key=key)
if set == []:
replicas = FSReplicas(block.oid, block.block_id)
else:
replicas = loads(set[0].replicas)
replicas.add(serverid, block.version)
# update or insert?
if set == []:
self.dbh_replicas.insert(key, dumps(replicas))
else:
set[0].update(replicas=dumps(replicas))
def get_block_replicas(self, oid, block_id):
key = str((long(oid), long(block_id)))
set = self.dbh_replicas.select(['key', 'replicas'], key=key)
if set == []:
return None
return loads(set[0].replicas)
def get_block(self, oid, block_id):
key = str((long(oid), long(block_id)))
set = self.dbh_blocks.select(['key', 'blocks'], key=key)
if set == []:
return None
return loads(set[0].blocks)
def print_replicas_db(self):
self.debug_print_db(self.dbh_replicas)
def close_fs_db(self):
self.dbh_blocks.close()
self.dbh_replicas.close()
self.dbh_tree.close()
self.dbh_id.close()
self.dbh_paths.close()
self.dbh_objects.close()
db.select(['name','fr_name'],age=30,fr_name = unicode(fr,'latin-1')).pp()
db.select(['name','fr_name'],fr_name = unicode(fr,'latin-1')).pp()
for r in [ r for r in db if r.age == 30 and r.fr_name == unicode(fr,'latin-1')]:
print r.name,r.fr_name.encode('latin-1')
raw_input()
# different ways to count the number of items
print len(db)
print sum([1 for r in db])
print len(db)
print len(db.select(['name']))
print len(db)
recs = db.select_for_update(['name'],'True')
print 'before update',recs[0].__version__,len(db)
for i in range(5):
recs = db.select_for_update(['name'],'True')
#db.update(recs[0])
recs[0].update()
print 'after update',db[0].__version__
print len(db)
db.cleanup()
print len(db)
recs = db.select([],'__id__ == c',c=20)
recs.pp()
print db[20]
print '\n has key 1000 ?',db.has_key(1000)
def run_test(thread_safe=False):
if not thread_safe:
db = Base(r'dummy')
else:
db = TS_Base('dummy')
db.create(('name',str), ('fr_name',unicode),
('age',int),
('size',int,300),
('birth',date,date(1994,1,14)),
('afloat',float,1.0),
('birth_hour', dtime,dtime(10,10,10)),
mode='override')
# test float conversions
if thread_safe is False:
f = db._file["afloat"]
def all(v):
return [ord(c) for c in v]
for i in range(10):
afloat = random.uniform(-10**random.randint(-307,307),
10**random.randint(-307,307))
try:
assert cmp(afloat,0.0) == cmp(f.to_block(afloat),f.to_block(0.0))
except:
print afloat
print "afloat > 0.0 ?",afloat>0.0
print "blocks ?",f.to_block(afloat)>f.to_block(0.0)
print all(f.to_block(afloat)),all(f.to_block(0.0))
raise
assert db.defaults["age"] == None
assert db.defaults["size"] == 300
assert db.defaults["afloat"] == 1.0
assert db.defaults["birth_hour"] == dtime(10,10,10)
assert db.defaults["birth"] == date(1994,1,14)
for i in range(100):
db.insert(name=random.choice(names),
fr_name = unicode(random.choice(fr_names),'latin-1'),
age=random.randint(7,47),size=random.randint(110,175),
birth=date(random.randint(1858,1999),random.randint(1,12),10),
afloat = random.uniform(-10**random.randint(-307,307),
10**random.randint(-307,307)),
birth_hour = dtime(random.randint(0, 23), random.randint(0, 59), random.randint(0, 59)))
assert len(db)==100
assert isinstance(db[50].fr_name,unicode)
print db[50].fr_name.encode('latin-1')
db.open()
# test if default values have not been modified after open()
assert db.defaults["age"] == None
assert db.defaults["size"] == 300
assert db.defaults["afloat"] == 1.0
assert db.defaults["birth_hour"] == dtime(10,10,10)
assert db.defaults["birth"] == date(1994,1,14)
for i in range(5):
# insert a list
db.insert(random.choice(names),
unicode(random.choice(fr_names),'latin-1'),
random.randint(7,47),random.randint(110,175),
date(random.randint(1958,1999),random.randint(1,12),10),
random.uniform(-10**random.randint(-307,307),
10**random.randint(-307,307)),
dtime(random.randint(0, 23), random.randint(0, 59), random.randint(0, 59)))
db.insert(name=random.choice(names)) # missing fields
for field in db.field_names[2:]:
if field == "name":
continue
try:
assert getattr(db[-1],field) == db.defaults[field]
except:
print "attribute %s not set to default value %s" %(field,db[-1])
raise
# insert as string
db.set_string_format(unicode,'latin-1')
db.set_string_format(date,'%d-%m-%y')
db.set_string_format(dtime,'%H-%M-%S')
db.insert_as_strings(name="testname",fr_name=random.choice(fr_names),
age=10,size=123,birth="07-10-95", birth_hour="20-53-3")
assert db[-1].birth == date(1995,10,7)
assert db[-1].name == "testname"
assert db[-1].age == 10
assert db[-1].afloat == db.defaults["afloat"]
db.insert_as_strings("testname",random.choice(fr_names),
11,134,"09-12-94",1.0, "5-6-13")
assert db[len(db)-1].birth == date(1994,12,9)
assert db[-1].name == "testname"
assert db[-1].age == 11
assert db[-1].size == 134
assert db[-1].afloat == 1.0
# search between 2 dates
print '\nBirth between 1960 and 1970'
for r in db.select(None,birth=[date(1960,1,1),date(1970,12,13)]):
print r.name,r.birth
print "sorted"
for r in db.select(None,birth=[date(1960,1,1),date(1970,12,13)]).sort_by('+name-birth'):
print r.name,r.birth
f = buzhug_files.FloatFile().to_block
def all(v):
return [ord(c) for c in f(v)]
# search between 2 floats
# selection by list comprehension
s1 = [ r for r in db if 0.0 <= r.afloat <= 1e50 ]
# selection by select
s2 = db.select(None,'x<=afloat<=y',x=0.0,y=1e50)
# selction by select with interval
s3 = db.select(None,afloat=[0.0,1e50])
try:
assert len(s1) == len(s2) == len(s3)
except:
print "%s records by list comprehension, " %len(s1)
print "%s by select by formula," %len(s2)
print "%s by select by interval" %len(s3)
for r in s1:
try:
assert r in s2
except:
print all(r.afloat)
for r in s2:
try:
assert r in s1
except:
print "in select but not in list comprehension",r
raise
r = db[0]
assert r.__class__.db is db
fr=random.choice(fr_names)
s1 = [ r for r in db if r.age == 30 and r.fr_name == unicode(fr,'latin-1')]
s2 = db.select(['name','fr_name'],age=30,fr_name = unicode(fr,'latin-1'))
assert len(s1)==len(s2)
# different ways to count the number of items
assert len(db) == sum([1 for r in db]) == len(db.select(['name']))
# check if version number is correctly incremented
for i in range(5):
recs = db.select_for_update(['name'],'True')
version = recs[0].__version__
recs[0].update()
assert db[0].__version__ == version + 1
# check if cleanup doesn't change db length
length_before = len(db)
db.cleanup()
assert len(db) == length_before
# check if selection by select on __id__ returns the same as direct
# access by id
recs = db.select([],'__id__ == c',c=20)
assert recs[0] == db[20]
# check that has_key returns False for invalid hey
assert not db.has_key(1000)
# drop field
db.drop_field('name')
# check if field was actually removed from base definition and rows
assert not "name" in db.fields
assert not hasattr(db[20],"name")
# add field
db.add_field('name',str,default="marcel")
# check if field was added with the correct default value
assert "name" in db.fields
assert hasattr(db[20],"name")
assert db[20].name == "marcel"
# change default value
db.set_default("name","julie")
db.insert(age=20)
assert db[-1].name == "julie"
# delete a record
db.delete([db[10]])
# check if record has been deleted
try:
print db[10]
raise Exception,"Row 10 should have been deleted"
except IndexError:
pass
assert 10 not in db
assert len(db) == length_before
# selections
# selection by generator expression
# age between 30 et 32
d_ids = []
for r in [r for r in db if 33> r.age >= 30]:
d_ids.append(r.__id__)
length = len(db)
# remove these items
db.delete([r for r in db if 33> r.age >= 30])
# check if correct number of records removed
assert len(db) == length - len(d_ids)
# check if all records have been removed
assert not [r for r in db if 33> r.age >= 30]
# updates
# select name = pierre
s1 = db.select(['__id__','name','age','birth'],name='pierre')
# make 'pierre' uppercase
for record in db.select_for_update(None,'name == x',x='pierre'):
db.update(record,name = record.name.upper())
# check if attribute was correctly updated
for rec in s1:
assert db[rec.__id__] == "Pierre"
# increment ages
for record in db.select_for_update([],'True'):
age = record.age
if not record.age is None:
db.update(record,age = record.age+1)
# check
assert db[record.__id__].age == age + 1
for record in [r for r in db]:
age = record.age
if not record.age is None:
db.update(record,age = record.age+1)
# check
assert db[record.__id__].age == age + 1
# change dates
for record in db.select_for_update([],'age>v',v=35):
db.update(record,birth = date(random.randint(1958,1999),
random.randint(1,12),10))
db.commit()
# check length after commit
assert sum([1 for r in db]) == len(db)
# insert new records
for i in range(50):
db.insert(name=random.choice(names),
age=random.randint(7,47),size=random.randint(110,175))
# check that record 10 is still deleted
try:
print db[10]
raise Exception,"Row 10 should have been deleted"
except IndexError:
pass
print db.keys()
print "has key 10 ?",db.has_key(10)
assert 10 not in db
#raw_input()
# check that deleted_lines was cleared by commit()
assert not db._pos.deleted_lines
print db._del_rows.deleted_rows
length = len(db) # before cleanup
# physically remove the deleted items
db.cleanup()
# check that deleted_lines and deleted_rows are clean
assert not db._pos.deleted_lines
assert not db._del_rows.deleted_rows
# check that record 10 is still deleted
try:
print db[10]
raise Exception,"Row 10 should have been deleted"
except IndexError:
pass
assert 10 not in db
# check that length was not changed by cleanup
assert len(db) == length
assert len([ r for r in db]) == length
# age > 30
for r in db.select(['__id__','name','age'],
'name == c1 and age > c2',
c1 = 'pierre',c2 = 30):
assert r.name == "pierre"
assert r.age > 30
# name =="PIERRE" and age > 30
for r in db.select(['__id__','name','age','birth'],
'name == c1 and age > c2',
c1 = 'PIERRE',c2 = 30):
assert r.name == 'PIERRE'
assert r.age > 30
# test with !=
for r in db.select(['__id__'],'name != c1',c1='claire'):
assert r.name != 'claire'
# age > id
# with select
s1 = db.select(['name','__id__','age'],'age > __id__')
for r in s1:
assert r.age > r.__id__
# with iter
s2 = [ r for r in db if r.age > r.__id__ ]
for r in s2:
assert r.age > r.__id__
assert len(s1) == len(s2)
# birth > date(1978,1,1)
# with select
s1 = db.select(['name','__id__','age'],'birth > v',v=date(1978,1,1))
for r in s1:
assert r.birth > date(1978,1,1)
# with iter
s2 = [ r for r in db if r.birth and r.birth > date(1978,1,1) ]
for r in s2:
assert r.birth > date(1978,1,1)
assert len(s1) == len(s2)
# test with floats
for i in range(10):
x = random.uniform(-10**random.randint(-307,307),
10**random.randint(-307,307))
s1 = [ r for r in db if r.afloat > x ]
s2 = db.select(['name'],'afloat > v',v=x)
assert len(s1)==len(s2)
# base with external link
houses = Base('houses')
houses.create(('address',str),('flag',bool),('resident',db,db[0]),mode="override")
addresses = ['Giono','Proust','Mauriac','Gide','Bernanos','Racine',
'La Fontaine']
ks = db.keys()
for i in range(50):
x = random.choice(ks)
address = random.choice(addresses)
houses.insert(address=address,flag = address[0]>"H",resident=db[x])
# houses with jean
s1 = []
for h in houses:
if h.resident.name == 'jean':
s1.append(h)
# by select : ???
#s2 = houses.select([],'resident.name == v',v='jean')
# assert len(s1) == len(s2)
h1 = Base('houses')
h1.open()
l1 = len(h1.select([],flag=True))
l2 = len(h1.select([],flag=False))
assert l1 + l2 == len(h1)
class DictRecord(Record):
def __getitem__(self, k):
item = self
names = k.split('.')
for name in names:
item = getattr(item, name)
return item
h1.set_record_class(DictRecord)
print '\nrecord_class = DictRecord, h1[0]'
print h1[0]
print "\nResident name: %(resident.name)s\nAddress: %(address)s" % h1[0]
def run_test(thread_safe=False):
if not thread_safe:
db = Base(r'dummy')
else:
db = TS_Base('dummy')
db.create(('name', str), ('fr_name', unicode), ('age', int),
('size', int, 300), ('birth', date, date(1994, 1, 14)),
('afloat', float, 1.0), ('birth_hour', dtime, dtime(10, 10, 10)),
mode='override')
# test float conversions
if thread_safe is False:
f = db._file["afloat"]
def all(v):
return [ord(c) for c in v]
for i in range(10):
afloat = random.uniform(-10**random.randint(-307, 307),
10**random.randint(-307, 307))
try:
assert cmp(afloat, 0.0) == cmp(f.to_block(afloat),
f.to_block(0.0))
except:
print afloat
print "afloat > 0.0 ?", afloat > 0.0
print "blocks ?", f.to_block(afloat) > f.to_block(0.0)
print all(f.to_block(afloat)), all(f.to_block(0.0))
raise
assert db.defaults["age"] == None
assert db.defaults["size"] == 300
assert db.defaults["afloat"] == 1.0
assert db.defaults["birth_hour"] == dtime(10, 10, 10)
assert db.defaults["birth"] == date(1994, 1, 14)
for i in range(100):
db.insert(name=random.choice(names),
fr_name=unicode(random.choice(fr_names), 'latin-1'),
age=random.randint(7, 47),
size=random.randint(110, 175),
birth=date(random.randint(1858, 1999), random.randint(1, 12),
10),
afloat=random.uniform(-10**random.randint(-307, 307),
10**random.randint(-307, 307)),
birth_hour=dtime(random.randint(0,
23), random.randint(0, 59),
random.randint(0, 59)))
assert len(db) == 100
assert isinstance(db[50].fr_name, unicode)
print db[50].fr_name.encode('latin-1')
db.open()
# test if default values have not been modified after open()
assert db.defaults["age"] == None
assert db.defaults["size"] == 300
assert db.defaults["afloat"] == 1.0
assert db.defaults["birth_hour"] == dtime(10, 10, 10)
assert db.defaults["birth"] == date(1994, 1, 14)
for i in range(5):
# insert a list
db.insert(
random.choice(names), unicode(random.choice(fr_names), 'latin-1'),
random.randint(7, 47), random.randint(110, 175),
date(random.randint(1958, 1999), random.randint(1, 12), 10),
random.uniform(-10**random.randint(-307, 307),
10**random.randint(-307, 307)),
dtime(random.randint(0, 23), random.randint(0, 59),
random.randint(0, 59)))
db.insert(name=random.choice(names)) # missing fields
for field in db.field_names[2:]:
if field == "name":
continue
try:
assert getattr(db[-1], field) == db.defaults[field]
except:
print "attribute %s not set to default value %s" % (field,
db[-1])
raise
# insert as string
db.set_string_format(unicode, 'latin-1')
db.set_string_format(date, '%d-%m-%y')
db.set_string_format(dtime, '%H-%M-%S')
db.insert_as_strings(name="testname",
fr_name=random.choice(fr_names),
age=10,
size=123,
birth="07-10-95",
birth_hour="20-53-3")
assert db[-1].birth == date(1995, 10, 7)
assert db[-1].name == "testname"
assert db[-1].age == 10
assert db[-1].afloat == db.defaults["afloat"]
db.insert_as_strings("testname", random.choice(fr_names), 11, 134,
"09-12-94", 1.0, "5-6-13")
assert db[len(db) - 1].birth == date(1994, 12, 9)
assert db[-1].name == "testname"
assert db[-1].age == 11
assert db[-1].size == 134
assert db[-1].afloat == 1.0
# search between 2 dates
print '\nBirth between 1960 and 1970'
for r in db.select(None, birth=[date(1960, 1, 1), date(1970, 12, 13)]):
print r.name, r.birth
print "sorted"
for r in db.select(None, birth=[date(1960, 1, 1),
date(1970, 12,
13)]).sort_by('+name-birth'):
print r.name, r.birth
f = buzhug_files.FloatFile().to_block
def all(v):
return [ord(c) for c in f(v)]
# search between 2 floats
# selection by list comprehension
s1 = [r for r in db if 0.0 <= r.afloat <= 1e50]
# selection by select
s2 = db.select(None, 'x<=afloat<=y', x=0.0, y=1e50)
# selction by select with interval
s3 = db.select(None, afloat=[0.0, 1e50])
try:
assert len(s1) == len(s2) == len(s3)
except:
print "%s records by list comprehension, " % len(s1)
print "%s by select by formula," % len(s2)
print "%s by select by interval" % len(s3)
for r in s1:
try:
assert r in s2
except:
print all(r.afloat)
for r in s2:
try:
assert r in s1
except:
print "in select but not in list comprehension", r
raise
r = db[0]
assert r.__class__.db is db
fr = random.choice(fr_names)
s1 = [r for r in db if r.age == 30 and r.fr_name == unicode(fr, 'latin-1')]
s2 = db.select(['name', 'fr_name'], age=30, fr_name=unicode(fr, 'latin-1'))
assert len(s1) == len(s2)
# different ways to count the number of items
assert len(db) == sum([1 for r in db]) == len(db.select(['name']))
# check if version number is correctly incremented
for i in range(5):
recs = db.select_for_update(['name'], 'True')
version = recs[0].__version__
recs[0].update()
assert db[0].__version__ == version + 1
# check if cleanup doesn't change db length
length_before = len(db)
db.cleanup()
assert len(db) == length_before
# check if selection by select on __id__ returns the same as direct
# access by id
recs = db.select([], '__id__ == c', c=20)
assert recs[0] == db[20]
# check that has_key returns False for invalid hey
assert not db.has_key(1000)
# drop field
db.drop_field('name')
# check if field was actually removed from base definition and rows
assert not "name" in db.fields
assert not hasattr(db[20], "name")
# add field
db.add_field('name', str, default="marcel")
# check if field was added with the correct default value
assert "name" in db.fields
assert hasattr(db[20], "name")
assert db[20].name == "marcel"
# change default value
db.set_default("name", "julie")
db.insert(age=20)
assert db[-1].name == "julie"
# delete a record
db.delete([db[10]])
# check if record has been deleted
try:
print db[10]
raise Exception, "Row 10 should have been deleted"
except IndexError:
pass
assert 10 not in db
assert len(db) == length_before
# selections
# selection by generator expression
# age between 30 et 32
d_ids = []
for r in [r for r in db if 33 > r.age >= 30]:
d_ids.append(r.__id__)
length = len(db)
# remove these items
db.delete([r for r in db if 33 > r.age >= 30])
# check if correct number of records removed
assert len(db) == length - len(d_ids)
# check if all records have been removed
assert not [r for r in db if 33 > r.age >= 30]
# updates
# select name = pierre
s1 = db.select(['__id__', 'name', 'age', 'birth'], name='pierre')
# make 'pierre' uppercase
for record in db.select_for_update(None, 'name == x', x='pierre'):
db.update(record, name=record.name.upper())
# check if attribute was correctly updated
for rec in s1:
assert db[rec.__id__] == "Pierre"
# increment ages
for record in db.select_for_update([], 'True'):
age = record.age
if not record.age is None:
db.update(record, age=record.age + 1)
# check
assert db[record.__id__].age == age + 1
for record in [r for r in db]:
age = record.age
if not record.age is None:
db.update(record, age=record.age + 1)
# check
assert db[record.__id__].age == age + 1
# change dates
for record in db.select_for_update([], 'age>v', v=35):
db.update(record,
birth=date(random.randint(1958, 1999), random.randint(1, 12),
10))
db.commit()
# check length after commit
assert sum([1 for r in db]) == len(db)
# insert new records
for i in range(50):
db.insert(name=random.choice(names),
age=random.randint(7, 47),
size=random.randint(110, 175))
# check that record 10 is still deleted
try:
print db[10]
raise Exception, "Row 10 should have been deleted"
except IndexError:
pass
print db.keys()
print "has key 10 ?", db.has_key(10)
assert 10 not in db
#raw_input()
# check that deleted_lines was cleared by commit()
assert not db._pos.deleted_lines
print db._del_rows.deleted_rows
length = len(db) # before cleanup
# physically remove the deleted items
db.cleanup()
# check that deleted_lines and deleted_rows are clean
assert not db._pos.deleted_lines
assert not db._del_rows.deleted_rows
# check that record 10 is still deleted
try:
print db[10]
raise Exception, "Row 10 should have been deleted"
except IndexError:
pass
assert 10 not in db
# check that length was not changed by cleanup
assert len(db) == length
assert len([r for r in db]) == length
# age > 30
for r in db.select(['__id__', 'name', 'age'],
'name == c1 and age > c2',
c1='pierre',
c2=30):
assert r.name == "pierre"
assert r.age > 30
# name =="PIERRE" and age > 30
for r in db.select(['__id__', 'name', 'age', 'birth'],
'name == c1 and age > c2',
c1='PIERRE',
c2=30):
assert r.name == 'PIERRE'
assert r.age > 30
# test with !=
for r in db.select(['__id__'], 'name != c1', c1='claire'):
assert r.name != 'claire'
# age > id
# with select
s1 = db.select(['name', '__id__', 'age'], 'age > __id__')
for r in s1:
assert r.age > r.__id__
# with iter
s2 = [r for r in db if r.age > r.__id__]
for r in s2:
assert r.age > r.__id__
assert len(s1) == len(s2)
# birth > date(1978,1,1)
# with select
s1 = db.select(['name', '__id__', 'age'], 'birth > v', v=date(1978, 1, 1))
for r in s1:
assert r.birth > date(1978, 1, 1)
# with iter
s2 = [r for r in db if r.birth and r.birth > date(1978, 1, 1)]
for r in s2:
assert r.birth > date(1978, 1, 1)
assert len(s1) == len(s2)
# test with floats
for i in range(10):
x = random.uniform(-10**random.randint(-307, 307),
10**random.randint(-307, 307))
s1 = [r for r in db if r.afloat > x]
s2 = db.select(['name'], 'afloat > v', v=x)
assert len(s1) == len(s2)
# base with external link
houses = Base('houses')
houses.create(('address', str), ('flag', bool), ('resident', db, db[0]),
mode="override")
addresses = [
'Giono', 'Proust', 'Mauriac', 'Gide', 'Bernanos', 'Racine',
'La Fontaine'
]
ks = db.keys()
for i in range(50):
x = random.choice(ks)
address = random.choice(addresses)
houses.insert(address=address, flag=address[0] > "H", resident=db[x])
# houses with jean
s1 = []
for h in houses:
if h.resident.name == 'jean':
s1.append(h)
# by select : ???
#s2 = houses.select([],'resident.name == v',v='jean')
# assert len(s1) == len(s2)
h1 = Base('houses')
h1.open()
l1 = len(h1.select([], flag=True))
l2 = len(h1.select([], flag=False))
assert l1 + l2 == len(h1)
class DictRecord(Record):
def __getitem__(self, k):
item = self
names = k.split('.')
for name in names:
item = getattr(item, name)
return item
h1.set_record_class(DictRecord)
print '\nrecord_class = DictRecord, h1[0]'
print h1[0]
print "\nResident name: %(resident.name)s\nAddress: %(address)s" % h1[0]
for r in [
r for r in db if r.age == 30 and r.fr_name == unicode(fr, 'latin-1')
]:
print r.name, r.fr_name.encode('latin-1')
raw_input()
# different ways to count the number of items
print len(db)
print sum([1 for r in db])
print len(db)
print len(db.select(['name']))
print len(db)
recs = db.select_for_update(['name'], 'True')
print 'before update', recs[0].__version__, len(db)
for i in range(5):
recs = db.select_for_update(['name'], 'True')
#db.update(recs[0])
recs[0].update()
print 'after update', db[0].__version__
print len(db)
db.cleanup()
print len(db)
recs = db.select([], '__id__ == c', c=20)
recs.pp()
print db[20]
print '\n has key 1000 ?', db.has_key(1000)
